आकरनार तारा vs श्रवण तारा

Property आकरनार तारा श्रवण तारा
पदनाम Alp Eri 53Alp Aql
नक्षत्रमंडल N/A Aquila
वर्णक्रम वर्ग Class B — B-type (Blue-White) Class A — A-type (White)
आभासी परिमाण +0.45 +0.76
निरपेक्ष परिमाण -2.70 2.21
दूरी 139 ly 16.7 ly
द्रव्यमान N/A N/A
त्रिज्या N/A N/A
तापमान N/A N/A
दीप्तिमानता N/A N/A

Key Differences

  • Both are among the most rapidly rotating known stars and are significantly oblate as a result.
  • Altair rotates in ~10.4 hours and has been directly imaged to confirm its flattened disk-like shape.
  • Achernar's equatorial diameter is 56% wider than its poles — the most flattened bright star known.
  • Altair is an A-type star; Achernar is a hotter B-type star.
  • Altair is very close at 16.7 light-years; Achernar is 139 light-years away.

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